JP3721988B2 - Wireless intercom system, wireless call intercom system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
[0002]
The present invention relates to a wireless intercom system configured by combining a doorphone slave unit, a wireless repeater, and a wireless intercom.
[Prior art]
[0003]
In the conventional interphone system, as shown in FIG. 22, a plurality of interphone sub-master devices 400 are connected by a two-wire signal line L to an interphone master device 300 in which the door phone slave unit 200 is connected by a two-wire signal line L. It is configured.
[0004]
In this system, when the interphone sub-master unit 400 (# 1) responds to a call from the door phone slave unit 200, the changeover switch SW1 is turned on, the changeover switch SW2 is turned off, the changeover switch SW3 is turned on, and the changeover switch SW4. Turns off. As a result, a good level audio signal can be transmitted and received between the doorphone slave unit 200 and the interphone sub-master unit 400 (# 1) through the two-wire signal line L. A high-quality call can be made with (# 1). In the figure, reference numeral 110 denotes a call detection from the doorphone slave unit 200, power feeding to the doorphone slave unit 200, switching of the change-over switches SW1 to SW4, etc. to electrically connect the interphones 300, 400 and the doorphone slave unit 200. The door phone interface for connecting is shown.
[Problems to be solved by the invention]
[0005]
By the way, the above-described wired interphone system has a doorphone interface for each interphone master unit and interphone sub-master unit, and thus has a problem in terms of manufacturing cost and the number of parts.
[0006]
In addition, when trying to share the doorphone interface of the interphone master unit, it is necessary to derive the transmission path and the reception path separately from each of the transmission path and the reception path after the doorphone interface. The wiring between the intercoms becomes four lines, and the wiring work becomes complicated.
[0007]
Furthermore, in order to ensure a high quality call, the intercom that does not participate in the call must be electrically disconnected from the 2-wire signal line in order not to reduce the audio signal level transmitted and received via the 2-wire signal line. Therefore, a changeover switch is required for each intercom, and there is a problem in terms of the number of parts.
[0008]
In addition, recently, wireless intercom systems that allow wireless communication between doorphone slave units and intercoms by directly sending and receiving wireless signals between doorphone slave units and intercoms are also being used. However, since this is not a wired system, in order to ensure call quality, there is no need for the mechanical operation of an interphone that is not participating in a call as described above. It was necessary to provide an interface, and either doorphone interface could not be shared.
[0009]
Furthermore, while the doorphone slave unit is installed outdoors, the intercom is installed indoors, so the wireless signal transmitted and received between the doorphone slave unit and the intercom may be blocked by the building wall, and the communication quality is reduced. It may not be kept good. Furthermore, since the door phone slave unit is equipped with a wireless circuit for transmitting and receiving wireless signals, it is exposed to severe temperature changes and environmental changes, and the quality of the call with the interphone may not be kept good.
[0010]
The present invention has been made in consideration of the above circumstances, and all intercoms can share a doorphone interface, there is no need for wiring work between intercoms, and intercoms that are not participating in a call. It is an object of the present invention to provide a wireless intercom system that can ensure a high-quality call without performing a mechanical operation, and a wireless call intercom system configured using the wireless intercom.
[Means for Solving the Problems]
[0011]
In order to achieve the above object, in the wireless intercom system according to claim 1 of the present invention, a wireless intercom system comprising a plurality of wireless repeaters in which door phone slave units are connected by signal lines and a plurality of wireless intercoms. Any one of the wireless intercoms can communicate with a doorphone slave unit connected to one of the wireless repeaters by transmitting and receiving a predetermined wireless signal to and from one of the wireless repeaters. The wireless signal includes a plurality of data frames defining the same control command, and the wireless repeater and the wireless interphone depend on which data frame is received among the plurality of data frames. Control command specified in the data frame It was constructed to determine the timing of the row.
[0012]
The wireless intercom system according to claim 2 is a wireless intercom system including a plurality of wireless repeaters in which door phone slave units are connected by signal lines, and a plurality of wireless intercoms, By sending and receiving a predetermined wireless signal to and from one of the wireless repeaters, it is configured to make a call with the door phone slave unit connected to one of the wireless repeaters. A wireless call device to be output is combined, and one of the wireless intercoms is set as a wireless interphone base unit, and all the devices other than itself are registered and set only in the base unit.
[0013]
In the wireless intercom system according to the third aspect, an extension call between wireless intercoms is performed by transmitting and receiving a predetermined wireless signal between the wireless intercoms.
[0014]
The wireless intercom system according to claim 4 is configured to monitor the doorphone slave unit with the wireless intercom by transmitting and receiving a predetermined wireless signal between the wireless repeater and the wireless intercom.
[0015]
In the wireless intercom system according to claim 5, the wireless intercom has a hands-free call function.
[0016]
In the wireless intercom system according to the sixth aspect of the present invention, the forced transmission / reception is set between the wireless intercom and the door phone slave unit by a setting operation in the wireless intercom.
[0017]
The wireless intercom system according to claim 7 is configured to perform forced transmission / forced reception between the wireless intercom and the door phone slave unit by a setting operation in the wireless repeater.
[0018]
In the wireless intercom system according to claim 8, an extension call is made from a wireless intercom to another wireless intercom, and among the intercoms that have accepted the call, an extension call can be made only with one responding wireless intercom. It was set as the structure to do.
[0019]
The wireless intercom system according to claim 9 is provided with a plurality of call channels, and an empty channel is selected by a predetermined method, and the doorphone slave unit and the wireless intercom or the wireless intercom are used by using the empty channel. By forming a communication path between them, a configuration is possible in which a plurality of call pairs can talk simultaneously in parallel.
[0020]
In the wireless intercom system according to claim 10, the wireless repeater defines a connected doorphone child unit by a predetermined operation, and the wireless interphone sets a corresponding doorphone child unit by the predetermined operation. The wireless intercom is configured to transmit and receive wireless signals only to and from the wireless repeater in which the set doorphone slave unit is defined.
[0021]
In the wireless intercom system according to claim 11, the wireless repeater includes a call volume switching switch for switching a call volume depending on the type of the doorphone slave unit. The output level of the audio signal is switched.
[0022]
In the wireless intercom system according to claim 12, the wireless intercom includes a door phone monitor button for monitoring the door phone slave unit, and outputs a wireless signal to the wireless repeater by operating the door phone monitor button. The wireless repeater that received the call and received the sound was configured to output the voice input to the doorphone slave unit to the wireless interphone and monitor the doorphone slave unit in the wireless interphone.
[0023]
In the wireless intercom system according to claim 13, the wireless intercom includes a doorphone call button for making a call with the doorphone slave unit, and a wireless signal is output to the wireless repeater by the operation of the doorphone call button. The wireless repeater that received and accepted the call was configured to form a communication path between the doorphone slave unit and the wireless intercom.
[0024]
In the wireless intercom system according to the fourteenth aspect, the wireless repeater includes power supply means for supplying the operation power of the door phone slave unit, and is configured to supply power through a signal line.
[0025]
In the wireless intercom system according to claim 15, the wireless repeater includes a terminal for connecting a two-wire signal line as a signal line.
[0026]
In the wireless call intercom system according to claim 16, when the wireless interphone master unit receives a wireless signal from the wireless call device, it makes a predetermined call and amplifies its output level to another wireless intercom. In response to this, a predetermined call call is made.
[0027]
In the wireless call intercom system according to the seventeenth aspect, at least one of the wireless intercoms other than the wireless interphone master unit is configured as a wireless interphone submaster unit.
[0028]
In the wireless call intercom system according to claim 18, the wireless interphone master unit monitors the presence of a wireless signal by sequentially switching between two monitoring frequencies, and there is a wireless signal of one of the monitoring frequencies. If so, the wireless signal is received with the monitoring frequency fixed, and the data frame is captured from the received wireless signal.
[0029]
In the wireless call intercom system according to claim 19, the wireless intercom master unit monitors the presence of the wireless signal by sequentially switching the three monitoring frequencies, and there is a wireless signal of any monitoring frequency. Then, the monitoring frequency is fixed, the wireless signal is received, and the data frame is captured from the received wireless signal.
[0030]
The wireless call intercom system according to claim 20, wherein the wireless interphone master unit determines an unnecessary monitoring frequency according to a registration setting state of a device other than itself, and interrupts the monitoring operation when switching to the monitoring frequency. It was.
[0031]
In the wireless call intercom system according to the twenty-first aspect, the wireless intercom master unit determines that reception of a wireless signal from the wireless call device is a call start instruction.
[0032]
In the wireless call intercom system according to claim 22, when the wireless interphone master unit receives a wireless signal from a specific wireless call device, the wireless interphone master unit outputs a wireless signal to the wireless repeater and transmits the wireless signal to the wireless repeater. A predetermined alarm sound is output from the connected doorphone slave unit.
[0033]
In the wireless call intercom system according to claim 23, the wireless call device includes a contact input transmitter that outputs an on signal and an off signal as a wireless signal by opening and closing a window and a door. In synchronism with the input of the ON signal and OFF signal from the contact input transmitter, the other wireless interphone is called by outputting a wireless signal.
DETAILED DESCRIPTION OF THE INVENTION
[0034]
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an example of a configuration of a main part of a wireless intercom system according to the present invention.
[0035]
In this system, a wireless repeater 1, a wireless interphone master unit 3, and a wireless interphone sub-master unit 4 connected to a doorphone slave unit 2 through a two-wire signal line L are combined to form a wireless repeater 1 and a wireless intercom 3, 4 is configured to cause a call between the wireless repeater 1 and the wireless intercoms 3 and 4 by transmitting and receiving wireless signals.
[0036]
The wireless repeater 1 detects a call from the doorphone child unit 2, supplies power to the doorphone child unit 2, forms a communication path between the doorphone child unit 2 and the wireless intercoms 3 and 4, and connects the wireless repeater 1 to the doorphone child unit 2. And a radio circuit 11 for transmitting and receiving wireless signals between the wireless interphones 3 and 4.
[0037]
The wireless interphones 3 and 4 include a radio circuit 35 for transmitting and receiving a wireless signal to and from the doorphone slave unit 2 and the other wireless interphones 3 and 4, and the doorphone slave unit 2 and the other wireless interphones 3 and 4. And a call circuit 31 that enables a hands-free call using the speaker 32 and the microphone 33.
[0038]
The call circuit 31 is provided with a hands-free IC, and a hands-free call can be made with a call partner.
[0039]
With this configuration, if the doorphone slave unit 2 and the wireless repeater 1 are installed, the user can place or move the wireless intercom 3 to an arbitrary place and make a hands-free call anywhere. It is convenient and convenient.
[0040]
In addition, if the wireless repeater 1 is provided indoors, wireless signals can be transmitted and received between the wireless intercoms 3 and 4 indoors, and the radio wave condition can be kept good, and the doorphone slave unit 2 and the wireless intercom 2 can be wirelessly connected. Comfortable hands-free communication with intercoms 3 and 4
[0041]
Since the hands-free IC of the call circuit 31 compares the audio signal for the speaker 32 with the audio signal from the microphone 33 and sends only the higher one, the amplifiers on the speaker 32 side and the microphone 33 side are mutually connected. An instruction to forcibly transmit or forcibly answer the hands-free IC by a predetermined operation on the wireless intercoms 3 and 4, for example, a pressing operation of a doorphone response button 34, which will be described later, or the like for a predetermined time or longer. If it is possible to make a call, even if noise occurs outdoors or indoors and the comparison process of the hands-free IC is affected, making it difficult to make a call, you can perform forced sending and receiving with a simple operation. Can do.
[0042]
This hands-free IC may be provided not on the wireless intercom 3 or 4 side but on the wireless repeater 1 side. In this way, the wireless interphones 3 and 4 can share the hands-free IC of the wireless repeater 1.
[0043]
FIG. 2 is a diagram showing an example of a main part configuration of the wireless call intercom system of the present invention. This includes a wireless repeater 1 (# 1, # 2) in which two doorphone slave units 2 (# 1, # 2) are connected by a two-wire signal line L, and wireless intercoms 3, 4; And a wireless call device 6 that outputs a wireless call signal by manual operation such as operation of a push button, a switch, and a drawstring. Reference numeral 5 denotes a wireless intercom handset, the function of which will be described later.
[0044]
By adopting such a configuration, it is possible to selectively use a call call and a radio call according to the necessity at two locations apart from each other.
[0045]
Here, in FIGS. 1 and 2, the wireless repeater 1 is configured to connect the two-wire signal line L derived from the door phone slave unit 2 to the two-wire signal line connection terminal T. With this configuration, The two-wire signal line used in the existing wired intercom system can be diverted, and there is an advantage that a wireless intercom and a wireless call intercom system can be prepared. Note that the present invention is not limited to this, and for example, the wireless repeater 1 and the door phone slave unit 2 may be connected by a coaxial line.
[0046]
FIG. 3 is a diagram for explaining a call path forming operation when the wireless interphones 3 and 4 respond to a call from the door phone slave unit 2. As a wireless signal transmission / reception channel, a total of 19 channels including a communication channel (1 to 18CH) and a control channel (19CH) are prepared, and when the doorphone slave unit 2 is called, the wireless repeater 1 detects this. Then, after the carrier sense of the control channel, an intercom call signal is output through the control channel.
[0047]
Then, this intercom call signal is received by the wireless intercoms 3 and 4 and outputs a doorphone ringing sound. If there is a response operation, the wireless intercoms 3 and 4 that have been subjected to the response operation have 18 channels in the MCA (multi-channel access) system. An empty channel is selected from the call channels (for example, 5CH), and after the carrier sense of the control channel, an intercom call acceptance signal is output through the control channel. In addition, when the empty channel of the call channel cannot be secured, the wireless repeater 1 and the wireless intercoms 3 and 4 notify the call channel non-secure.
[0048]
The intercom call acceptance signal is output together with the information on the selected empty channel, and the wireless repeater 1 that has received the information outputs the call start signal directly through the control channel after carrier sense of the control channel, and this is transmitted to the wireless intercom. Accepts 3 and 4.
[0049]
Then, after the carrier sense of the selected call channel (5CH), the wireless repeater 1 outputs an acknowledgment signal through the call channel, and if this is received by the wireless intercoms 3 and 4, the call is started. The audio signal at the time is transmitted and received between the wireless repeater 1 and the wireless intercoms 3 and 4 through the call channel (5CH).
[0050]
When a call end operation is performed on the wireless interphones 3 and 4 or when a predetermined time elapses, the wireless interphones 3 and 4 output a call end signal directly through the call channel (5CH) being used, If the wireless repeater 1 accepts this, the call is terminated.
[0051]
The wireless repeater 1 defines a connected doorphone child unit 2 by operating an internal setting switch, and the wireless interphones 3 and 4 can set the corresponding doorphone child unit 2 by operating the internal setting switch. It has become.
[0052]
That is, in the wireless repeater 1, the connected door phone child device 2 is defined as “door phone child device 1” or “door phone child device 2”, and in the wireless interphones 1 and 2, the corresponding door phone child device 2 is defined. It can be set such as “corresponding to door phone slave unit 1”, “corresponding to door phone slave device 2”, “corresponding to door phone slave devices 1 and 2”, “not compatible”.
[0053]
For example, referring to FIG. 2, when the wireless repeater 1 (# 1) is defined as “doorphone slave unit 1” and the wireless repeater 1 (# 2) is defined as “doorphone slave unit 2”, The wireless intercoms 3 and 4 operate as follows according to the setting of the corresponding doorphone slave unit 2.
[0054]
1. In the case of “compatible with doorphone slave unit 1”: Every time a call start operation is performed, “standby” → “call with doorphone slave unit 2 (# 1)” → “standby” is operated.
[0055]
2. In the case of “doorphone slave unit 2 compatible”: Every time a call start operation is performed, “standby” → “call with doorphone slave unit 2 (# 2)” → “standby” is operated.
[0056]
3. In the case of “corresponding to the doorphone slave unit 1 or 2”: Every time a call start operation is performed, “standby” → “call with the doorphone slave unit 2 (# 1)” → “call with the doorphone slave unit 2 (# 2)” ”→” Standby ”.
[0057]
4). In the case of “Not supported”: Even if the call start operation is performed, neither the door phone slave unit 2 (# 1) nor the door phone slave unit 2 (# 2) can talk.
[0058]
In this case as well, a free call channel is selected by the MCA method described above, and a call is made using that call channel.
[0059]
As described above, the wireless repeater 1 defines the connected doorphone child unit 2 and the wireless interphones 3 and 4 are configured to set the corresponding doorphone child unit 2. Multiple units can be installed. For example, if you want to use the doorphone 2 at the entrance and the doorway, or if you want to use the doorphone 2 in a two-family house, etc., you can use one system. can do. In addition, since a call can be made with the corresponding doorphone slave unit 2 by a call start operation on the wireless intercoms 3 and 4, the call is resumed when the call received from the doorphone slave unit 2 times out. Or, a voice call can be made to a child or the like around the doorphone child unit 2. In addition, an extension call can be made by transmitting and receiving a wireless signal between the wireless intercoms 3 and 4. For example, if an extension call is made by the wireless interphone master unit 3, the wireless interphone sub-master unit 4 is called by extension, and when any one of the sub-master units 4 (for example, the sub-master unit 4 (# 1)) responds, The single sub-master unit 4 (# 1) selects an empty channel (for example, 10CH) by the MCA method described above, and enables a 1: 1 call through the empty channel. For a certain period of time after calling the extension, a call is made to the person in the vicinity of the called side by outputting a short message as a voice signal from the calling side to the called side. be able to. When a 1: 1 call is made, the content of the call does not leak to the other wireless intercoms 3 and 4.
[0060]
In this way, in both cases of door phone calls and extension calls, a free call channel is selected, so if there are not even control channels in use, call pairs can be created as many as the number of call channels. It is possible to make a parallel call of a plurality of pairs, which is not possible with a conventional wired system, which has only one. The wireless intercoms 3 and 4 that have not participated in the call can make a call with the door phone slave unit 2 as described above or receive a call call as described later.
[0061]
Further, by transmitting and receiving wireless signals between the wireless interphones 3 and 4 and the wireless repeater 1, the door intercom unit 2 is monitored from the wireless intercoms 3 and 4, that is, the door intercom unit 3 is connected to the wireless intercom 3 and 4. The sound around the vessel 2 can be confirmed. During monitoring, the sound on the wireless intercom 3 and 4 side is not output to the door phone sub unit 2 side.
[0062]
For example, as described above, when the wireless repeater 1 (# 1) is defined as “doorphone slave unit 1” and the wireless repeater 1 (# 2) is defined as “doorphone slave unit 2”, the wireless intercom In 3 and 4, the following operations are performed according to the setting of the corresponding door phone 2.
[0063]
1. In the case of “corresponding to the doorphone slave unit 1”: Every time the monitor start operation is performed, “standby” → “monitoring of the doorphone slave unit 2 (# 1)” → “standby” is operated.
[0064]
2. In the case of “corresponding to the doorphone slave unit 2”: Every time the monitor start operation is performed, “standby” → “monitoring of the doorphone slave unit 2 (# 2)” → “standby” is operated.
[0065]
3. In the case of “Doorphone unit 1 and 2 compatible”: Every time a monitor start operation is performed, “Standby” → “Monitoring of doorphone unit 2 (# 1)” → “Monitoring of doorphone unit 2 (# 2)” → Acts as "standby".
[0066]
4). In the case of “Not supported”: Even if the monitor start operation is performed, neither the door phone slave unit 2 (# 1) nor the door phone slave unit 2 (# 2) can be monitored.
[0067]
FIG. 4 shows the configuration of the wireless signal described above. This signal includes a plurality of data frames defining the same control command.
[0068]
This is because the wireless repeater 1 and the wireless intercoms 3 and 4 intermittently receive the wireless signal and further improve the reliability of data transmission, but a plurality of devices receive the wireless signal, When an operation based on the control command is received, for example, when a wireless call signal is received and a ringing tone is output, a device that operates by receiving “data frame 1” and an operation that receives “data frame 5”. There is a time difference with the device for a maximum of 4 frames (a time difference of 240 ms at maximum occurs when 60 ms per frame is shown).
[0069]
In order to prevent this, the wireless repeater 1 and the wireless intercoms 3 and 4 set an operation processing waiting time corresponding to the received frame as shown in FIG. As a result, the wireless intercoms 3 and 4 can delay the execution of the control command specified by the frame according to the received frame by the operation processing waiting time, and all the devices in the system can execute the control command at the same timing. In response to a call from the door phone slave unit 2, an operation such as outputting a ringing tone at the same timing in all the wireless intercoms 3 and 4 becomes possible.
[0070]
The wireless interphone system has an internal configuration as shown in FIG. 6 in order to enable operations described later. Here, the internal configuration of the wireless interphone master unit 3 is shown as a representative of the wireless interphone. However, when the wireless interphone sub-master unit 4 is applied, the internal configuration and operation are the same as those of the master unit 3. is there.
[0071]
The wireless repeater 1 includes a door phone interface circuit 10, a radio circuit 11 (both described above), and a power source 12. This wireless repeater 1 has a wireless communication function and a power supply function that a conventional doorphone slave unit has, and further, a call detection function from a doorphone slave unit, a doorphone slave unit, and a conventional wireless interphone. It has a function to form a communication path. The door phone interface 10 constitutes the power supply means of the present invention, and supplies the operation power of the door phone slave unit 2 through the two-wire signal line L. Thereby, it is not necessary to mount a battery in the door phone sub-unit 2, and the door phone sub-unit 2 can be reduced in size and weight.
[0072]
The door phone sub unit 2 has a function of making a call with a responding resident who is operated by a visitor to call a resident, and enables a call using the speaker 21 and the microphone 22 by transmitting and receiving an audio signal. A call circuit 20 and a call button 23 are provided.
[0073]
The wireless intercom 3 has a function of transmitting and receiving wireless signals to and from the other party to make a hands-free call. The control circuit 30 for controlling the wireless intercom 3, the above-described communication circuit 31, and the doorphone slave unit 2 A door phone response button 34 for responding to a call, the wireless circuit 35 described above, a power source 36, and a charging circuit 37 for charging a rechargeable battery 38 are provided.
[0074]
The operation of such a configuration will be described with reference to the time chart of FIG. For example, when the call button 23 of the door phone slave unit 2 is operated, the wireless repeater 1 detects this and starts feeding the door phone slave unit 2.
[0075]
At this time, the wireless repeater 1 outputs a wireless call signal, which is received by the wireless intercom 3 and outputs a predetermined ring tone. On the other hand, if there is a response operation on the wireless intercom 3, the wireless repeater 1 accepts this, forms a communication path between the wireless intercom 3 and the door phone slave unit 2, and makes a call between them. Make it possible.
[0076]
Then, if there is a call termination operation such as operating the door phone response button 34 again with the wireless interphone 3, the wireless repeater 1 accepts this and disconnects the call path between the wireless interphone 3 and the door phone slave unit 2. Even if there is no call termination operation on the wireless intercom 3, the call path is automatically cut off after a certain time has elapsed since the start of the call.
[0077]
FIG. 8 is a diagram illustrating a second example of the internal configuration of the wireless intercom system. In this embodiment, a wireless repeater 1A is provided instead of the wireless repeater 1. In the wireless repeater 1A, a call volume switch SW13 for switching the call volume is added depending on the type of the doorphone slave unit 2 to be connected. By operating the call volume switch SW13, the doorphone slave unit 2 and the wireless interphone 3 are operated. Switch the output level of the audio signal for.
[0078]
As described above, the operation of the call volume switch SW13 causes the wireless repeater 1A to switch the output level of the audio signal to the doorphone slave unit 2 and the wireless intercom 3, so which type of doorphone slave unit 2 is connected to the wireless repeater 1A. Even if it is done, a door phone call can be performed with the optimal call volume. It should be noted that the output level of the audio signal to the doorphone slave unit 2 and the output level of the audio signal to the wireless intercom 3 may be switched in conjunction with each other by operating the call volume switching SW 13 or may be switched independently. Good.
[0079]
FIG. 9 is a diagram illustrating a third example of the main configuration of the wireless intercom system. In this device, a wireless interphone 3A is provided instead of the wireless interphone 3, and a doorphone monitor button 39 for monitoring the doorphone slave unit 2 is added to the wireless interphone 3A.
[0080]
The operation of such a configuration will be described with reference to the time chart of FIG. That is, the wireless intercom 3 outputs and calls a wireless signal to the wireless repeater 1 by operating the door phone monitor button 39, and the wireless repeater 1 that has received this starts supplying power to the doorphone slave unit 2. Thus, the sound input to the doorphone slave unit 2 is output to the wireless intercom 3 to enable monitoring.
[0081]
As described above, by operating the doorphone monitor button 39, the wireless repeater 1 outputs the sound input to the doorphone slave unit 2 to the wireless intercom 3A for monitoring, so that the doorphone monitor button 39 is operated. From the wireless intercom 3A, the outdoor situation can be confirmed through the door phone slave unit 2, and the crime prevention effect can be improved. The door phone monitor button 39 may not be newly provided, and monitoring may be enabled by a predetermined operation (for example, pressing for a long time) of an existing button.
[0082]
If there is a monitoring end operation such as operating the door phone monitor button 39 again with the wireless intercom 3, the wireless repeater 1 accepts this and ends the monitoring of the door phone slave unit 2 from the wireless intercom 3. Even if there is no monitoring end operation on the wireless intercom 3, the monitoring is automatically ended when a certain time has elapsed since the start of monitoring.
[0083]
FIG. 11 is a diagram illustrating a fourth example of the main configuration of the wireless intercom system. In this device, a wireless interphone 3B is provided instead of the wireless interphone 3, and a doorphone call button 40 for making a call with the doorphone slave unit 2 is added to the wireless interphone 3B.
[0084]
The operation of such a configuration will be described with reference to the time chart of FIG. That is, the wireless intercom 3B outputs and calls a wireless signal to the wireless repeater 1 by operating the door phone call button 40, and the wireless repeater 1 that has received this starts supplying power to the doorphone slave unit 2 and wirelessly. A communication path is formed between the interphone 3 and the door phone slave unit 2 to enable communication between them.
[0085]
In this way, by operating the door phone call button 40, the wireless repeater 1 forms a call path between the door phone slave unit 2 and the wireless intercom 3B, so that the call resumes when the door phone call times out during the visitor. If you want to call a person (children, etc.) in the vicinity of the place where the doorphone child unit 2 is installed, such as the front door, just operate the doorphone call button 40, Can be in a call state. The door phone call 40 may be made possible by a predetermined operation (for example, long-time pressing) of an existing button without newly providing the door phone call button 40.
[0086]
Here, the wireless interphone 3 is configured to be able to call and talk to one or both of the doorphone slave units 2 in preparation for the case where there are two doorphone slave units 2. The operation of calling and calling both the doorphone slave units 2 is an operation of calling the second doorphone slave unit 2 and calling after the call of the first doorphone slave unit 2 is terminated. It should be noted that after the time of a call with any one of the doorphone sub-units 2 is up, the door-phone sub-unit 2 that has been in a call can be called for a predetermined time.
[0087]
Then, if there is a call termination operation such as operating the door phone call button 40 again with the wireless intercom 3, the wireless repeater 1 accepts this and disconnects the communication path between the wireless intercom 3 and the door phone slave unit 2. Even if there is no call termination operation on the wireless intercom 3, the call path is automatically cut off after a certain time has elapsed since the start of the call.
[0088]
Next, the wireless call intercom system shown in FIG. 2 will be described below. The wireless interphone master unit 3, the wireless interphone sub master unit 4, and the wireless interphone slave unit 5 are equipped with radio modules suitable for executing functions as a master unit, a sub master unit, and a slave unit, respectively.
[0089]
That is, the master unit 3 is equipped with a master module for executing a function as a master unit, and can transmit and receive wireless signals among the wireless repeater 1, the sub master unit 4, and the slave unit 5.
[0090]
The secondary master unit 4 is equipped with both a master module and a slave module in order to execute a function as a secondary master unit. The wireless repeater 1, the master unit 3, the other secondary master unit 4, Wireless signals can be transmitted to and received from the handset 5.
[0091]
Further, since the slave unit 5 performs a function as a slave unit, a slave module is mounted, and wireless signals can be transmitted / received only to / from the master unit 3.
[0092]
About this, what was illustrated is FIG. 13 and has made the communication possible state between apparatuses into a table | surface. As can be understood by referring to this table, the master unit 3 and the sub-master unit 4 can communicate with the two wireless repeaters 1, and as described above, a call for the call from the doorphone slave unit 2, the doorphone The telephone call of the handset 2 and the monitoring of the doorphone handset 2 can be performed.
[0093]
The master unit 3 can communicate with the sub master unit 4, and the sub master unit 4 can communicate with the master unit 3 and other sub master units 4. Thereby, the master unit 3 can make an extension call by calling the sub-master unit 4, and the sub-master unit 4 can make an extension call by calling the master unit 3 or another sub-master unit 4. The subunit | mobile_unit 5 can communicate only with the main | base station 3, and can perform the extension telephone call which called the main | base station 3. FIG.
[0094]
In particular, since the secondary master unit 4 can communicate with the master unit 3 and other secondary master units 4, the secondary master unit 4 can flexibly set a communication partner from the master unit 3 or the secondary master unit 4. It is possible and convenient. Conventionally, only a 1: 1 or 1: N system of the master unit 3 and the slave unit 5 can be constructed, but any pair can be communicated by using this secondary master unit 4. Three or more systems can be constructed.
[0095]
Here, the frequency of the wireless signal output from the base unit 3 is 440 MHz, the frequency of the wireless signal output from the secondary base unit 4 is 440 MHz, the frequency of the wireless signal output from the handset 5 is 421 MHz, and the wireless call device C The frequency of the wireless signal output from is 426 MHz.
[0096]
Each of the wireless repeater 1, the wireless interphone master unit 3, the wireless interphone sub-master unit 4, the wireless interphone slave unit 5, and the wireless call device 6 has a unique ID number registered in advance. In addition to its own ID number, the ID numbers of other devices existing in the system, that is, the wireless repeater 1, the wireless interphone sub-master device 4, the wireless interphone slave device 5, and the wireless call device 6 are registered.
[0097]
This will be described with reference to FIGS. As shown in FIG. 14, the master device 3 can register the ID number of the device to be registered in addition to its own ID number, and operates the registration button of the master device 3 as shown in FIG. The base unit 3 is shifted from the normal use mode to the registration mode by a predetermined operation such as. Thereafter, by a predetermined operation such as operating a registration transmission button of the registered device, a registration signal including the ID number of the registered device is output to the parent device 3 to register the ID number.
[0098]
Then, the master unit 3 includes its own ID number in the registration signal as a system ID and sends it back to the registered device. As shown in FIG. 14, the registered device registers the system ID, and the master unit 3 However, if a registration completion signal is received from the registered device, the registration process ends and the original normal use mode is restored. In addition, in the main | base station 3, if predetermined time passes after transfering to registration mode, it will return to normal use mode automatically.
[0099]
As described above, since all devices other than the device itself are registered and set only in the parent device 3, when one system is constructed, the number of devices constituting one system is included in the registration of one registered device. There is no need to perform the registration operation, and registration of one registered device is only one registration operation with respect to the parent device 3, which is convenient.
[0100]
When outputting a wireless signal from a device to another device, the system ID registered in the above-described registration process is included in addition to its own ID code. It is determined whether or not the ID matches its own system ID. When the ID matches, it is determined that the instruction is from the same system, and the received wireless signal is accepted.
[0101]
The wireless intercom base unit 3 monitors the presence of a wireless signal by sequentially switching two monitoring frequencies. If a wireless signal of one of the monitoring frequencies is present, the monitoring frequency is fixed and the monitoring signal is fixed. A wireless signal is received, and a data frame is captured from the received wireless signal.
[0102]
As shown in FIG. 16, the wireless intercom base unit 3 executes the carrier presence / absence confirmation mode, for example, sequentially switches between the monitoring frequency 1 and the monitoring frequency 2 every 50 ms, so that the wireless signals of these two monitoring frequencies are transmitted. Monitors existence.
[0103]
Then, if there is a wireless signal of a certain monitoring frequency, for example, monitoring frequency 1, the mode shifts to the transmission data presence / absence confirmation mode, the monitoring of monitoring frequency 1 is extended by 50 ms, and a data frame is included in the existing wireless signal. Check if it is.
[0104]
At this time, if the data frame is not included, the mode returns to the original carrier presence / absence confirmation mode. If the data frame is included, the mode shifts to the transmission data capturing mode, and the transmission data capturing time is provided, and the data is within that time. Capture a frame. Note that the transmission data capture time needs to be at least twice the data frame transmission time.
[0105]
In this way, as described above, a wireless signal of 426 MHz is output from the wireless call device 6, and a wireless signal of 440 MHz is output from the secondary master unit 4, so signals of these two frequencies are sequentially monitored. Then, depending on the difference in the frequency of the existing wireless signal, it can be determined whether it is from the wireless call device 6 or from the secondary master unit 4. In addition, it is not necessary to operate two receiving circuits, and it is possible to monitor and receive wireless signals for two frequencies by the operation of one receiving circuit, thereby reducing power consumption by half.
[0106]
When a manual operation such as operation of a push button, a switch, or a drawstring is performed, the wireless call device 6 outputs a wireless call signal at 1 mW as shown in FIG. Then, the wireless intercom base unit 3 receives the wireless call signal from the wireless call device 6 by the process described above, takes transmission data from the signal, makes a predetermined call based on the fetched transmission data, As shown in FIG. 17, the received wireless call signal is transferred to the secondary master unit 4 and the slave unit 5 at 10 mW. The secondary master unit 4 and the slave unit 5 that have received this call a predetermined call.
[0107]
Thus, when the base unit 3 receives the wireless signal from the wireless call device 6, the level is amplified and transferred to the secondary base unit 4 and the secondary unit 5. The signal can also be transferred to the machine 5 and the reliability of the system is improved.
[0108]
Here, the wireless interphone master unit 3 may convert the frequency of the received wireless signal and transfer the converted signal to the wireless interphone sub-master unit 4. If it carries out like this, it can respond to both the call call system and radio | wireless call system from which the frequency which can be used differs according to a regulation.
[0109]
When the wireless call device 6 is out of battery and the level of the wireless call signal to be output is low, the wireless intercoms 3 and 4 output a wireless call device battery low notification, for example, a wireless call device battery low notification sound. To do. The wireless intercoms 3 and 4 receiving the call can talk with the doorphone slave unit 2, but the call LED at that time is turned on after the doorphone call ends.
[0110]
The wireless intercom base unit 3 may perform the carrier presence / absence confirmation mode as shown in FIG. Here, the monitoring frequency 1, the monitoring frequency 2, and the monitoring frequency 3 are sequentially switched every 50 ms to monitor the presence of wireless signals of these three monitoring frequencies. If there is a wireless signal of a certain monitoring frequency, for example, monitoring frequency 1, the above-described transmission data presence / absence confirmation mode and transmission data capturing mode are sequentially executed.
[0111]
In this way, as described above, a wireless signal of 426 MHz is output from the wireless call device 6, a wireless signal of 440 MHz is output from the secondary master unit 4, and a wireless signal of 421 MHz is output from the wireless intercom handset 5. Therefore, these three frequency signals are sequentially monitored, and depending on the difference in the frequency of the existing wireless signal, whether it is from the wireless call device 6, the sub master device 4, or the slave device 5 It can be judged whether it is a thing. In addition, it is not necessary to operate three receiving circuits, and it is possible to monitor and receive wireless signals for three frequencies with the operation of one receiving circuit, so that power consumption can be reduced to 1/3.
[0112]
Note that the wireless intercom base unit 3 determines an unnecessary monitoring frequency out of two or three monitoring frequencies according to the registration setting state of devices other than itself, and interrupts the monitoring operation when switching to the monitoring frequency. For example, if the handset 5 is not registered, it is determined that the monitoring frequency of 421 MHz is unnecessary, and the signal monitoring of the monitoring frequency is interrupted. In this way, the power consumption for signal monitoring can be further reduced.
[0113]
Here, when the wireless interphone master unit 3 receives a wireless signal from the wireless call device 6, the wireless interphone base unit 3 may determine that the reception is a call start instruction. This will be described with reference to FIG.
[0114]
For example, when the push button 23 of the door phone slave unit 2 is operated, a back tone sound such as “ping-pong” is output from the door phone slave unit 2. Then, in the wireless repeater 1, the call LED blinks. The wireless repeater 1 always lights the power LED when the power is on.
[0115]
At this time, a wireless call signal is output from the wireless repeater 4 to the master unit 3, and the master unit 3 that receives this signal outputs a visitor ring tone such as “ping-pong ping-pong” and blinks the call LED. .
[0116]
Then, when the wireless call device 6 is pressed, the master unit 3 accepts this, and after outputting a key touch sound such as “pee” as a call preparation sound, as in the case of the operation of the call button, Talking with the doorphone slave unit 2 for 2 minutes. In addition, when in a call state with the doorphone slave unit 3, the wireless repeater 1 and the master unit 3 each turn on the call LED. This call-enabled state ends when the call button of the main unit 3 is operated again, but after the start of the call, even if the call button is not operated, the key touch sound described above is output and automatically ended. To do.
[0117]
When the wireless interphone master unit 3 receives a wireless signal from a specific wireless call device 6, the wireless interphone base unit 3 outputs a wireless signal to the wireless repeater 4, and from the doorphone slave unit 2 connected to the wireless repeater 4. A predetermined alarm sound is output. This will be described with reference to FIG.
[0118]
Normally, when the wireless call device 6 is pressed, the wireless intercom base unit 3 accepts a wireless call signal from the wireless call device 6 and if it is a call from the device 6 registered as “call 1”. Among the call LEDs, the LED of “call 1” is turned on and a call ringing tone such as “puppupupupupupu” is output. The lighting of the “call 1” LED is continued for a certain time (for example, 3 minutes). At this time, the wireless interphone master unit 3 outputs a wireless call signal to the sub-master unit 4 and the slave unit 5 to turn on the LED of “call 1” and to output a call ring tone.
[0119]
However, if there is an operation on a device registered as a specific wireless call device 6, the wireless intercom base unit 3 blinks all the call LEDs and outputs a predetermined alarm sound. At the same time, a wireless call signal is output to all devices other than itself, such as the wireless repeater 1, the secondary master unit 4, and the slave unit 5. At this time, the sub master unit 4 and the slave unit 5 blink all the call LEDs and output a predetermined alarm sound, and the wireless repeater 1 outputs a predetermined alarm sound from the doorphone slave unit 2.
[0120]
As a result, when an emergency situation occurs or when used in a single-person household, the emergency situation can be notified to the outside, so that there is a high possibility of relief and a higher sense of security can be obtained.
[0121]
Here, the wireless call machine 6 can be configured by a contact input transmitter that outputs an ON signal and an OFF signal as a wireless signal by opening and closing a window or a door. In synchronization with the input of the ON signal and OFF signal from the transmitter, the wireless signal is output and called to other wireless intercoms. This will be described with reference to FIG.
[0122]
For example, when the contact input transmitter outputs an ON signal by opening a window or door, the base unit 3 lights the “call 2” LED if the output is from the device 6 registered as “call 2”. And a ringing sound such as “puppu” is output. At the same time, a wireless paging signal is output to all devices other than itself, such as the wireless repeater 1, the secondary master unit 4, and the slave unit 5. At this time, the secondary master unit 4 and the slave unit 5 turn on the LED of “call 2” and output a call ringing sound such as “puppu”, and the wireless repeater 1 turns on the call LED.
[0123]
Then, when the contact input transmitter outputs an off signal due to the closing of the window or door, the base unit 3 stops lighting the LED of “call 2” and outputs a call ringing sound such as “puppu”. At the same time, a wireless paging signal is output to all devices other than itself, such as the wireless repeater 1, the secondary master unit 4, and the slave unit 5. At this time, the secondary master unit 4 and the slave unit 5 stop lighting the LED of “call 2”, output a call ringing sound such as “popup”, and the wireless repeater 1 lights up the call LED. This makes it possible to monitor the surrounding conditions of the dwelling units such as windows and doors, and can also be used as a simple crime prevention system, so that a higher sense of security can be obtained.
【The invention's effect】
[0124]
As can be understood from the above description, in the wireless intercom system according to claim 1 of the present invention, the door phone slave unit and the wireless repeater are connected by a signal line, and the wireless interphone is connected to the wireless repeater and the wireless signal. Therefore, if the door phone and the wireless repeater are installed, the user can install or move the wireless intercom to any place, which is highly convenient.
[0125]
In addition, if a wireless repeater is installed indoors, wireless signals can be sent and received indoors with the wireless intercom, and the radio wave condition can be kept good, and calls between the doorphone slave unit and the wireless intercom can be made. Can be comfortable.
Furthermore, since the wireless repeater and the wireless intercom determine the timing for executing the control command defined by the data frame depending on which data frame is received from among the plurality of data frames, The execution of the control command specified in the frame can be delayed, all the devices in the system can execute the control command at the same timing, and all wireless Operations such as outputting a ringing tone at the same timing through the intercom are possible.
According to claim 2, any one of the wireless intercoms is set as a wireless interphone master unit, and all the devices other than itself are registered and set only in the master unit. Registration of one registered device does not require registration for the number of units constituting one system, and registration of one registered device is only one registration operation for the parent device, which is convenient. .
Also, when a wireless interphone master unit receives a wireless signal from a wireless call device, it converts the frequency and forwards it to another wireless intercom. It can correspond to both.
[0126]
In Claim 3, since it is set as the structure which performs transmission / reception of a predetermined | prescribed wireless signal between wireless intercoms, and carries out the extension call between wireless intercoms, a user installs or moves a wireless intercom to another place, You can make a call with a wireless intercom.
[0127]
According to the fourth aspect of the present invention, a predetermined wireless signal is transmitted and received between the wireless repeater and the wireless intercom, and the doorphone slave unit is monitored by the wireless intercom. It can be installed or moved to monitor the doorphone unit.
[0128]
In the wireless intercom system according to the fifth aspect, since the wireless intercom has a hands-free call function, the user can talk and monitor by hand without holding the handset, which is convenient.
[0129]
In the wireless intercom system according to claim 6, the configuration is such that forced transmission / reception is set between the wireless intercom and the doorphone slave unit by a setting operation in the wireless intercom. Therefore, noise is generated outdoors or indoors. Even if troubles occur in the call with the door phone slave unit, it is convenient to perform forced transmission and reception by simply operating the wireless intercom.
[0130]
In the wireless intercom system according to the seventh aspect, the forced transmission / reception is set between the wireless intercom and the door phone slave unit by the setting operation in the wireless repeater. Even if noise occurs outdoors or indoors and troubles in a call with the door phone slave unit, it is convenient to perform forced transmission and reception by simply performing a predetermined operation on the wireless repeater.
[0131]
In addition, since the setting operation is performed by a wireless repeater, it is not necessary to mount a setting part on each wireless interphone, and the manufacturing cost is reduced.
[0132]
In the wireless intercom system according to claim 8, an extension call is made from a wireless intercom to another wireless intercom, and among the intercoms that have accepted the call, an extension call can be made only with one responding wireless intercom. Therefore, it is possible to prevent a device other than the two parties from interrupting the call and prevent the contents of the call from leaking to the other parties.
[0133]
The wireless intercom system according to claim 9 is provided with a plurality of call channels, and an empty channel is selected by a predetermined method, and the doorphone slave unit and the wireless intercom or the wireless intercom are used by using the empty channel. By constructing a communication path between them, it is configured to allow multiple call pairs to talk in parallel at the same time, so it is possible to make simultaneous calls of multiple pairs that could not be done with conventional wired intercom systems, and convenience High nature.
[0134]
In the wireless intercom system according to claim 10, the wireless intercom is configured to transmit and receive wireless signals only to and from the wireless repeater in which the set doorphone slave unit is defined. Multiple units can be installed. For example, if you want to use doorphones in two locations, the entrance and the doorway, or if you want to use doorphones in a two-family house, etc. Can do.
[0135]
In the wireless intercom system according to the eleventh aspect, since the output level of the audio signal to the doorphone slave unit and the wireless interphone is switched by the operation of the call volume switch, no matter what type of doorphone slave unit is connected to the wireless repeater. , You can make a doorphone call at the optimal call volume.
[0136]
In the wireless intercom system according to claim 12, by operating the door phone monitor button, a wireless signal is output and called to the wireless repeater, and the wireless repeater that receives the signal transmits the voice input to the door phone slave unit. Since it outputs to the wireless intercom and monitors the doorphone slave unit in the wireless intercom, if you operate the doorphone monitor button with the wireless intercom, you can check the outdoor situation through the doorphone slave unit from the wireless intercom, and the crime prevention effect Can be improved.
[0137]
In the wireless intercom system according to claim 13, by operating the door phone call button, a wireless signal is output and called to the wireless repeater, and the wireless repeater that receives the signal is between the doorphone slave unit and the wireless interphone. So that the call can be resumed when the doorphone call time is up during a visitor, or a call is made to a person (such as a child) in the vicinity of the doorphone handset installation location, such as the entrance To do so, it is possible to make a call state with the door phone slave only by operating the door phone call button.
[0138]
In the wireless intercom system according to claim 14, the wireless repeater includes power supply means for supplying an operation power for the door phone slave unit, and supplies power to the door phone slave unit through a signal line. There is no need to install it, making it possible to reduce the size and weight of the door phone slave unit.
[0139]
In the wireless intercom system according to claim 15, since the terminal for connecting the two-wire signal line is provided as the signal line, the two-wire signal line used in the existing wired interphone system is used. The wireless intercom system can be easily constructed.
[0140]
In the wireless intercom system according to claim 16, when the wireless interphone master unit receives a wireless signal from a wireless call device, the wireless intercom base unit converts the frequency and transmits the converted signal to another wireless intercom. It is possible to deal with both call calling systems and wireless calling systems of different types.
[0141]
In addition, since the output level of the received wireless signal is amplified and transferred to another wireless interphone, the wireless signal can be skipped to a distant interphone and reliability is improved.
[0142]
In the wireless call intercom system according to claim 17, at least one of the wireless intercoms other than the wireless interphone master unit is used as the wireless interphone submaster device. The communication partner can be set flexibly, which is convenient.
[0143]
Conventionally, only a 1: 1 or 1: N system of a master unit and a slave unit could be constructed, but by introducing this secondary master unit, three units that can communicate with any pair The above system can be constructed.
[0144]
In the wireless call intercom system according to claim 18, the wireless interphone master unit monitors the presence of a wireless signal by sequentially switching between two monitoring frequencies, and there is a wireless signal of one of the monitoring frequencies. If this is the case, the monitoring frequency is fixed and the wireless signal is received, and the data frame is captured from the received wireless signal. Therefore, in order to receive a wireless signal in which one of the two frequencies is transmitted, There is no need to operate the receiving circuit, and it is possible to monitor and receive wireless signals for two frequencies with the operation of one receiving circuit, and the power consumption can be halved.
[0145]
In the wireless call intercom system according to claim 19, the wireless intercom master unit monitors the presence of the wireless signal by sequentially switching the three monitoring frequencies, and there is a wireless signal of any monitoring frequency. If the wireless signal is received with a fixed monitoring frequency and a data frame is captured from the received wireless signal, three receptions are required to receive a wireless signal in which one of the three frequencies is transmitted. There is no need to operate the circuit, and it is possible to monitor and receive wireless signals for three frequencies with the operation of one receiving circuit, and to reduce the power consumption to 1/3.
[0146]
In the wireless call intercom system according to claim 20, the wireless interphone master unit determines an unnecessary monitoring frequency according to a registration setting state of a device other than itself and interrupts the monitoring operation when switching to the monitoring frequency. , Power consumption can be further reduced.
[0147]
In the wireless call intercom system according to claim 21, since the wireless intercom master determines that the reception of the wireless signal from the wireless call device is a call start instruction, the wireless intercom master can be wirelessly connected even if it is away from the wireless intercom master. By operating the call device, it is convenient to make a call with a door phone cordless handset or other wireless intercom.
[0148]
In the wireless call intercom system according to claim 22, when the wireless interphone master unit receives a wireless signal from a specific wireless call device, the wireless interphone master unit outputs a wireless signal to the wireless repeater and transmits the wireless signal to the wireless repeater. Since the alarm sound is output from the connected door phone slave unit, it is possible to notify the emergency situation outdoors when an emergency situation occurs or when it is used in a single-person household. Higher and higher security can be obtained.
[0149]
In the wireless call intercom system according to claim 23, the wireless intercom master unit outputs a wireless signal to another wireless intercom in synchronization with the input of the on signal and the off signal from the contact input transmitter. Therefore, it is possible to monitor the state of the surroundings of the dwelling unit such as windows and doors, and it can also be used as a simple crime prevention system, so that a higher sense of security can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a main configuration of a wireless intercom system according to the present invention.
FIG. 2 is a diagram illustrating an example of a main configuration of a wireless call intercom system.
FIG. 3 is a diagram for explaining a call path forming operation;
FIG. 4 is a diagram illustrating an example of a configuration of a wireless signal.
FIG. 5 is a diagram illustrating a setting state of an operation processing wait time for a received frame.
FIG. 6 is a diagram illustrating a first example of an internal configuration of a wireless intercom system.
7 is a time chart for explaining the operation of the wireless intercom system of FIG. 6; FIG.
FIG. 8 is a diagram illustrating a second example of the internal configuration of the wireless intercom system.
FIG. 9 is a diagram illustrating a third example of the internal configuration of the wireless intercom system.
10 is a time chart for explaining the operation of the wireless intercom system of FIG. 9; FIG.
FIG. 11 is a diagram illustrating a fourth example of the internal configuration of the wireless intercom system.
12 is a time chart for explaining the operation of the wireless intercom system of FIG. 11; FIG.
FIG. 13 is a diagram showing whether communication is possible between devices constituting the wireless call intercom system.
FIG. 14 is a diagram for describing registration work in the wireless call intercom system.
FIG. 15 is a diagram for describing registration work in the wireless call intercom system.
FIG. 16 is a diagram for explaining an example of a wireless signal monitoring operation of the wireless intercom base unit.
FIG. 17 is a diagram for explaining an example of the operation of the wireless intercom base phone.
FIG. 18 is a diagram for explaining an example of a wireless signal monitoring operation of the wireless intercom base unit.
FIG. 19 is a diagram for explaining an example of the operation of the wireless call intercom system.
FIG. 20 is a diagram for explaining another example of the operation of the wireless call intercom system.
FIG. 21 is a diagram for explaining still another example of the operation of the wireless call intercom system.
FIG. 22 is a diagram showing a conventional wired intercom system.
[Explanation of symbols]
1,1A ... Wireless repeater
2 ... Doorphone unit
3, 3A, 3B ... Wireless intercom master unit
4 ... Wireless intercom secondary master unit
5 ... Wireless interphone cordless handset
10 ... Doorphone interface
13 ... Call volume switch
31 ... Call circuit
39 ... Doorphone monitor button
40 ... Doorphone call button
C ... Wireless call device
L ... 2-wire signal line
T ... 2-wire signal line connection terminal

Claims (23)

A wireless intercom system composed of a plurality of wireless repeaters in which door phone slave units are connected by signal lines and a plurality of wireless intercoms,
Any of the wireless intercoms is configured to make a call with a doorphone slave connected to any of the wireless repeaters by transmitting / receiving a predetermined wireless signal to / from any of the wireless repeaters. And
The wireless signal includes a plurality of data frames that define the same control command,
The wireless repeater and the wireless interphone are configured to determine a timing for executing a control command defined by a data frame depending on which data frame of a plurality of data frames is received. . A wireless intercom system composed of a plurality of wireless repeaters in which door phone slave units are connected by signal lines and a plurality of wireless intercoms,
Any of the wireless intercoms is configured to make a call with a doorphone slave connected to any of the wireless repeaters by transmitting / receiving a predetermined wireless signal to / from any of the wireless repeaters. And
It is configured by combining wireless call devices that output wireless signals manually.
A wireless call intercom system configured such that one of the wireless intercoms is a wireless interphone master unit, and all devices other than itself are registered and set only in the master unit. In claim 1 or 2,
A wireless intercom system configured to make an extension call between the wireless interphones by transmitting and receiving a predetermined wireless signal between the wireless intercoms. In claim 1 or 2,
A wireless intercom system configured to monitor the doorphone slave unit with the wireless intercom by transmitting and receiving a predetermined wireless signal between the wireless repeater and the wireless intercom. In any one of Claims 1-4,
The wireless intercom system is a wireless intercom system with a hands-free calling function. In any one of Claims 1-5,
A wireless intercom system configured to perform setting of forced transmission / forced reception between the wireless intercom and the doorphone slave unit by a setting operation in the wireless intercom. In any one of Claims 1-5,
A wireless intercom system configured to set forced transmission / reception between the wireless intercom and the door phone slave unit by a setting operation in the wireless repeater. In any one of Claims 1-6,
A wireless intercom system configured to make an extension call only from one wireless interphone that has made a call to another wireless interphone from the wireless interphone and that has accepted the call. In any one of Claims 1-8,
A plurality of call channels are provided, and an empty channel is selected by a predetermined method, and a call path between the doorphone slave unit and the wireless interphone or the wireless interphone is formed using the empty channel. A wireless intercom system that allows multiple call pairs to talk simultaneously in parallel. In any one of Claims 1-9,
The wireless repeater defines a doorphone slave unit to be connected by a predetermined operation, and the wireless interphone sets a corresponding doorphone slave unit by a predetermined operation,
The wireless intercom system is a wireless intercom system configured to transmit and receive wireless signals only to and from a wireless repeater in which a set door phone slave is defined. In any one of Claims 1-10,
The wireless repeater includes a call volume switching switch that switches a call volume depending on the type of the doorphone slave unit. By operating the call volume switch, the output level of an audio signal to the doorphone slave unit and the wireless interphone is set. Wireless intercom system configured to switch. In any one of Claims 1-11,
The wireless intercom has a door phone monitor button for monitoring the door phone slave unit, and by operating the door phone monitor button, the wireless repeater is output to the wireless repeater and called.
The wireless intercom system configured to allow the wireless repeater that has received this to output the sound input to the door intercom unit to the wireless intercom and to monitor the door intercom unit in the wireless intercom. In any one of Claims 1-12,
The wireless intercom includes a door phone call button for making a call with the door phone slave unit, and by operating the door phone call button, the wireless repeater is output to the wireless repeater and called.
The wireless intercom system configured to form a communication path between the doorphone slave unit and the wireless intercom, when the wireless repeater that has received the command is received. In any one of Claims 1-13,
The wireless intercom system, wherein the wireless repeater includes power supply means for supplying operation power to the door phone slave unit, and supplies power through the signal line. In any one of Claims 1-14,
The wireless intercom system, wherein the wireless repeater includes a terminal for connecting a two-wire signal line as the signal line. In claim 2,
When the wireless interphone master unit receives a wireless signal from the wireless call device, the wireless interphone master unit makes a predetermined call, amplifies the output level, and outputs the amplified signal to another wireless interphone. Wireless call intercom system configured to make calls. In claim 16,
A wireless call intercom system in which at least one of the wireless intercoms other than the wireless intercom master is a wireless interphone sub-master. In claim 16 or claim 17,
The wireless intercom master unit monitors the presence of the wireless signal by sequentially switching between two monitoring frequencies.
A wireless call intercom system configured to receive a wireless signal with a fixed monitoring frequency and capture a data frame from the received wireless signal if a wireless signal of either monitoring frequency exists. In any one of Claims 16-18,
The wireless intercom master unit monitors the presence of the wireless signal by sequentially switching the three monitoring frequencies.
A wireless call intercom system configured to receive a wireless signal with a fixed monitoring frequency and capture a data frame from the received wireless signal if a wireless signal of any monitoring frequency exists. In claim 18 or claim 19,
A wireless call intercom system configured such that the wireless interphone master unit determines an unnecessary monitoring frequency according to a registration setting state of a device other than itself, and interrupts the monitoring operation when switching to the monitoring frequency. In any one of Claim 2 and Claims 16 to 20,
A wireless call intercom system in which the wireless intercom base unit is configured to determine that reception of a wireless signal from the wireless call device is a call start instruction. In any one of Claim 2 and Claims 16-21,
When the wireless interphone master unit receives a wireless signal from a specific wireless call device, the wireless interphone master unit outputs a wireless signal to the wireless repeater, and a predetermined alarm is issued from the doorphone slave unit connected to the wireless repeater. Wireless call intercom system configured to output sound. In any one of Claim 2 and Claims 16-22,
The wireless call device consists of a contact input transmitter that outputs an on signal and an off signal as a wireless signal by opening and closing a window or door.
A wireless call intercom system in which the wireless interphone master is configured to be called by outputting a wireless signal to another wireless interphone in synchronization with an ON signal and an OFF signal input from the contact input transmitter.

Images